GPU Mining Recommended BIOS settings for ASUS B250 MINING EXPERT?

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Recommended BIOS settings for ASUS B250 MINING EXPERT? Posted: 02 Apr 2019 05:38 PM PDT I checked the FAQ and WIKI but saw nothing concise. Having an issue with the ASUS B250 MINING EXPERT as follows: If I add a third GPU to the system it will not BIOS POST. (No beeps at all) Running latest 1007 BIOS update (02/28/19) Pulled battery and shorted CMOS reset Have a paddleboard in PCI-E 16x slot (read this was an potential issue) Tried populating in both low and high number sockets. (first 16x +A1 andA2; then 16x + C16 and C17; also just C16-C18 (no 16x)) CPU - 1600W supply; MB noted; G3900 Skylake; 16G DRAM ; 250G SSD; only NVIDIA GTX1550's - only intending to use 6. No GPU's installed - DRAM tests (MEMTEST86) passed for 73 hrs. All standard SW installs painless. No overclocking etc. Not intending to mine. Just want to work on some mining, AI and CUDA coding so please refrain from criticizing performance etc - not wanting to make a competitive rig - just a nice development bed utilizing the parts from this market segment. -- Debug details: If I have two GPU's in the system everything is fine - boots, Win7 drivers load - perfect. Rotate riser paddleboards through all positions with two GPU's - works for all positions. (Not a PCI issue) Rotate in different pairs of GPUs and repeat above - works fine (not a GPU issue) So not a GPU issue; not a paddle/cable, riser or power issue. (All slots work) Seems to be just a "third" GPU issue. MOBO Speaker connected - not even a POST beep - dead if a third GPU is added. -- Slowed PCI-E to GEN 1 from 2 - no change 4G Memory mode enabled (makes the two GPU mode work so left it) Turned off UEFI modes in BIOS - no change Since it will not POST - Mining vs Standard boot mode makes no difference ​ ASUS is willing to RMA the board but given ALL slots function independently it just feels like a BIOS setting issue to me. Given many are posting successful rigs in excess of two GPU's I thought it prudent to ask the community before I RMA'd. Thanks to all. submitted by /u/TechnicalWhore [link] [comments]

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